3Com NBX, Руководство по установке

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NBX IP Telephony Platforms 25
4 MOH Mini-jack (mono or stereo) that accepts Music-On-Hold audio
(maximum 2V peak to peak) from the line output of a CD player,
tape player, or other music source.
5 Console DB-9 connector that provides an RS-232 (DCE) TTY terminal
connection for access to system CLI commands and status
messages. For more information, see
“Connecting a Computer to
a Console Port” on page 196 .
6 Status
Lights Status lights S1 and S2 are normally off. They can be used by a
support technician for advanced troubleshooting.
7 USB Reserved for future use.
8 BRI Ports Four RJ-45 BRI station ports (eight channels). Ports 1 and 2 are
enabled by default. Ports 3 and 4 are activated by an optional
license.
9 ATA (FXS) Two Analog Terminal Adapter ports, RJ-11 FSX (Foreign Exchange
Station) connector for connecting an analog device, such as an
analog telephone or a fax machine. The LED associated with the
port indicates the state of the port:
Initialization:
■
Fast steady blink — Waiting for software download.
■
Solid on — Software has been downloaded. The flash memory
on the board is being loaded.
■
Slow, non symmetric blinking pattern — Waiting for
completion of the binding process to the NCP.
Operation:
■
Off for 9 to 10 seconds, on briefly — Idle, line is not in use.
■
On for 9 to 10 seconds, off briefly — A telephone call is
connected on this port.
10 Ethernet 10/100 switched Ethernet connection redundant uplink ports.
Use Ethernet 1 port to connect to the LAN. Ethernet 2 port is
normally inactive and becomes active only port 1 experiences a
link failure. Both ports show a positive link status even though
only one port at a time is active. Typically, you would connect
each port to a different switch and subnet.
LNK:
■
Yellow — 10Mbit link
■
Green — 100Mbit link
■
Off — No link
ACT:
■
Flashing Green — Activity on port
■
Off — No activity
Table 5 V3000 BRI Connectors and LEDs (continued)